Neither VGA nor DisplayPort is working :/

Can someone please let me know the motherboard model?

Your motherboard has VGA, DVI, and DisplayPort. To actually get them working, you’ll probably need to jump into the BIOS and tell it to prioritize the integrated graphics over whatever card is sitting in the PCI-E slot. That should kick the onboard VGA port back to life.

Once you’ve enabled that integrated graphics setting, maybe try seeing if you can get an image to show up on your TV using the DisplayPort on the motherboard.

Nice, I dig your answer 🙂

Checked my BIOS, but I'm not seeing what you're talking about. Everything's enabled except for some LAN setting that's turned off, but that doesn't seem related to the GPU. Can you walk me through which specific setting we're looking for?

One thing's bugging me though—if I turn on the integrated graphics, does my NVIDIA GeForce GTX series stop working? Because that would be a total pain if I have to mess with the BIOS every single time I want to watch a movie or play a game.

I haven't worked with your specific motherboard model before, so I'm not sure whose BIOS/UEFI is listed up there—maybe try checking one of these links instead

http://science.opposingviews.com/ena...sus-11643.html
http://www.techspot.com/community/to...n-bios.153619/ (you just need to enable it)

I just wanted to rule out whether the issue lies with the graphics card or something else entirely—because if everything works fine using the onboard graphics (like through the TV or monitor), then we'll know exactly where to start looking.

edit: found it
http://dlcdnet.dell.com/pub/DELL/mb/...5A78L-USB3.pdf
It's in the manual for the board, page 54: Advanced -> Chipset -> Internal graphics

While you were busy Googling (thanks for the help, by the way), I was messing around in the BIOS and found exactly what you linked. I just couldn't figure out these four options: gfxo-gpp-igfx-pci

Then the order of those letters starts shifting. Tried three different combos, and now both my monitor and the TV are running off the igfx-whatever🙂 Perfect, thanks!

So, tell me straight—is my gaming gonna be smooth?

And this is where the real headaches start. I've actually run into something similar—on my own rig, the DisplayPort to TV connection just won't work through the dedicated GPU, even though the integrated graphics handle it just fine.

I won't go through everything I've tried, since you already listed most of it.

The catch with using the integrated graphics is that they're pretty weak compared to your dedicated card, so you won't get much gaming performance out of them.

I wish I could be more helpful with the DisplayPort to TV issue on the discrete card, but honestly, all I can really say is: 🙂

edit: here's a thread I started, maybe you'll find something I missed.

There's always a chance the issue with the DisplayPort on the dedicated graphics card is actually hardware-related—like, maybe there's just something physically wrong with the port itself. Either way, I guess someone really needs to take a look at it in person.

Wait, hold on, did I just realize you're actually using the onboard graphics via DisplayPort while keeping a dedicated card just for gaming? Is that really how you've got it set up?

So, is the DisplayPort on that external 6800 series card just totally dead or something?

I'm having the exact same headache with my Dell Inc. 6670... the DisplayPort is basically useless for audio too... but honestly, if I'm hooking it up to my TV, I just use a standard monitor cable and then run a separate audio cable to get everything working, and it's fine... even if it's a total pain in the neck..

I honestly think your GPU might be totally dead. You should probably check if the fan is even spinning while the rig is powered on. Also, make sure the thing hasn't just popped out of its slot—it's possible someone bumped the case and knocked it loose, or maybe some kid just yanked it right out of the socket 😁... another thing is, if you're constantly messing around with all those cables, you might have damaged the DisplayPort connector, or it simply isn't seated quite right in the port